Improvement in breech-loading fire-arms



1. DAVIS. BreeCh-'loading Fire-mm1.A

Patented July 7, 1863.

NAFETERS. PHOTO-LITHQGRAPHER. WASHINGTON, D C.

y UNITED STATES ,aTnNT OFFICE.

` JARVIS DAVIS, OF BUFFALO, NEW YORK, ASSIGNOR TO PATRICK SMITH,

OF SAME PLACE.

IMPROVEMENT IN BREECH-LOADING FIRE-ARMS.

Speciiication forming part of Letters Patent N0. SSLEQS, dated July 7,1863.

To @ZZ whomit may concern:

Be it known that I, JARVIs DAVIS, of the city of Buffalo, county ofErie, and State of New York, have invented certain new and usefulImprovements in Breech-Loading Rifles; and I do hereby declare that thefollowing isa full, clear, and exact description thereof, referencebeing had to the accompanying drawings and the letters of referencemarked thereon, making a part of this specification, in which- Figure Iis a longitudinal section. Fig. II is a top plan, and Fig. III is across-section on line x y.

The nature of this invention relates, first, to the construction and useof a hinged abutment 5 second, in the construction and arrangement of ahooked bar connected to and operated by the hammer for withdrawing thedischarged cartridge from the barrel, in colnbination with the hingedabutment.

Letters of like name and kind refer to like parts in each ofthe figures.

A represents the barrel of the riiie, the breech end of which isinserted, as shown at a', in a casting, B,which forms an extension ofthe breech sufficient to receive a hinged abutment, (l, and the workinglparts of the lock. It also serves to form aportion of the stock,

Y and connects it (the stock) to the barrel.

C represents the hinged abutment. It is semi-cylindrical in form, and ischambered out, as shown at c. It is hinged to the right side ofthebreech B, as shown at c2, and shuts down closely behind the barrel, andbetween it and a sub-abutment, B, in a 1nanner to resist the recoil ofthe explosion. It is held down by the spring-cateh c3, but is easilyopened by pressing upward against the projecting thumb-piece 0*. Vhen itis thrown back, `as represented by the dotted lines, Fig. III, the openend of the barrel is exposed, so that the cartridge may be readilyinserted. Copper-cased cartridges must be used, and an annular rabbet ismade in the end of the barrel for the reception of the flange of thecartridge which contains the fulminate, as shown at d, so 'as to allowthe abutment to shut down behind the cartridge. Asub-abutment, B', isformed by the breech-casting,

which gives an additional support and strength to the abutment to resistthe recoil. A recess is made in this sub-abutment, through which thehammer enters to strike the head of the percussion-rod.

E represents a percussion-rod,which passes lengthwise through the upperside of the abutment C and its chamber c', so as to @ome in line withthe flange of' the cartridge.

F represents the hammer, which is made to strike against the head of thepercussionrod through the sub-abutment, as shown at f', and cause therod to push forward, and, by striking the ange of the cartridge, ignitethe fulminate and fire the charge. A spiral spring, f2, is placed aroundthe percussion `rod in a recess behind the rod-head, to draw the rodAback after being struck by the hammer. f3 is a nut on the rod toprevent the spring from pushing it back too far.

G represents a hooked bar for withdrawing the case of the dischargedcartridge. This bar lies in a grooved block, G', beneath the abutment,and is connected by a short link to the hammer H, as shown at g2. Whenthe hammer is down, the hook comes directly in,

under the iiange of the cartridge, a recess being made in the under sideof the barrel, as shown at g3, to allow it to pass under. A spring, g4,is connected to the under side of the bar, and bears upon the bottom ofthe groove in the block G', so as to press upward upon the bar and causeits hook to catch in behind the flange of the cartridge, so that whenthe abutment is raised and the hammer drawn back the cartridge-case willbe withdrawn from the barrel, and then, by a slight motion of the gun,it may be thrown away. Then the abutment is shut down, it bears upon thehooked bar and presses it down, so that if the hammer is drawn while theabutment is down thehook cannot catch'the flange of .the cartridge, butpasses by it, so that 4the gun may be readily cocked or uncooked whileloaded without any action of the hook upon the cartridge.

I is the mainspring, J the trigger, and K the guard.

L represents the stock.

M represents the sight. gagement with the cartridge when the hinged WhatI ola-im, and desire to secure by Letf abutment is o1osed,substantia1lyas herein set ters Patent, isforth. The hookedbarG, operated bythehannner, l JARVIS DAVIS. substantially as described, in combinationwith Vitnesses: the grooved block G and hinged abutment C, E. B.FORBUSH, so that the hooked bal' is thrown out of en- W. H. FORBUSH.

